[PR #12883] [MERGED] fix: UVICORN_WORKERS __init__.py pass application as string #38672

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GiteaMirror · 2026-04-25T11:34:54-05:00

GiteaMirror commented

2026-04-25 11:34:54 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/12883
Author: @Classic298
Created: 4/15/2025
Status: ✅ Merged
Merged: 4/18/2025
Merged by: @tjbck

Base: dev ← Head: patch-1

📝 Commits (1)

36b2052 Update init.py

📊 Changes

1 file changed (+1 additions, -1 deletions)

View changed files

📝 backend/open_webui/__init__.py (+1 -1)

📄 Description

Pull Request Checklist

Note to first-time contributors: Please open a discussion post in Discussions and describe your changes before submitting a pull request.

Before submitting, make sure you've checked the following:

Target branch: Please verify that the pull request targets the dev branch.
Description: Provide a concise description of the changes made in this pull request.
Changelog: Ensure a changelog entry following the format of Keep a Changelog is added at the bottom of the PR description.
Documentation: Have you updated relevant documentation Open WebUI Docs, or other documentation sources?
Dependencies: Are there any new dependencies? Have you updated the dependency versions in the documentation?
Testing: Have you written and run sufficient tests to validate the changes?
Code review: Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards?

Changelog Entry

Description

If UVICORN_WORKERS aren't used, Open WebUI works as intended.
If UVICORN_WORKERS is set to a higher value than 1, Uvicorn will throw a warning, that the application must be passed as a string

Changed

Changed the application to be passed as a string

Additional Information

I also tested if Open WebUI still starts if no workers are passed (aka only 1 worker) and the application is passed as a string: yes Open WebUI still starts. So by changing this into a string will work for all cases (only 1 worker or multiple workers)

Tested on pip venv python3.11 + python 3.12

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/open-webui/open-webui/pull/12883 **Author:** [@Classic298](https://github.com/Classic298) **Created:** 4/15/2025 **Status:** ✅ Merged **Merged:** 4/18/2025 **Merged by:** [@tjbck](https://github.com/tjbck) **Base:** `dev` ← **Head:** `patch-1` --- ### 📝 Commits (1) - [`36b2052`](https://github.com/open-webui/open-webui/commit/36b2052fb08be64d5fe8d01e60524a14910a8563) Update __init__.py ### 📊 Changes **1 file changed** (+1 additions, -1 deletions) <details> <summary>View changed files</summary> 📝 `backend/open_webui/__init__.py` (+1 -1) </details> ### 📄 Description # Pull Request Checklist ### Note to first-time contributors: Please open a discussion post in [Discussions](https://github.com/open-webui/open-webui/discussions) and describe your changes before submitting a pull request. **Before submitting, make sure you've checked the following:** - [X] **Target branch:** Please verify that the pull request targets the `dev` branch. - [X] **Description:** Provide a concise description of the changes made in this pull request. - [X] **Changelog:** Ensure a changelog entry following the format of [Keep a Changelog](https://keepachangelog.com/) is added at the bottom of the PR description. - [X] **Documentation:** Have you updated relevant documentation [Open WebUI Docs](https://github.com/open-webui/docs), or other documentation sources? - [X] **Dependencies:** Are there any new dependencies? Have you updated the dependency versions in the documentation? - [X] **Testing:** Have you written and run sufficient tests to validate the changes? - [X] **Code review:** Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards? # Changelog Entry ### Description - If UVICORN_WORKERS aren't used, Open WebUI works as intended. - If UVICORN_WORKERS is set to a higher value than 1, Uvicorn will throw a warning, that the application must be passed as a string ### Changed - Changed the application to be passed as a string --- ### Additional Information - I also tested if Open WebUI still starts if **no workers are passed** (aka only 1 worker) and the application is passed as a string: yes Open WebUI still starts. So by changing this into a string will work for all cases (only 1 worker or multiple workers) Tested on pip venv python3.11 + python 3.12 --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-04-25 11:34:54 -05:00

GiteaMirror closed this issue

2026-04-25 11:34:55 -05:00

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Reference: github-starred/open-webui#38672